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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Flange Mount Type Flange Mount Type |
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For Duct Shape For Duct Shape |
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Airflow Damper Type Airflow Damper Type |
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About Duct Connections
More
Quick-Disconnect Duct and Fittings
Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.
Aluminum is lightweight and has good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Blast gates stop airflow when closed.
Aluminum | |||||
|---|---|---|---|---|---|
| Trade Size | ID | End Construction | Blade Material | Each | |
| 4 | 3 15/16" | Rolled | Galvanized Steel | 0000000 | 000000 |
| 5 | 4 15/16" | Rolled | Galvanized Steel | 0000000 | 00000 |
| 6 | 5 15/16" | Rolled | Galvanized Steel | 0000000 | 00000 |
| 7 | 7" | Rolled | Galvanized Steel | 0000000 | 00000 |
| 8 | 7 15/16" | Rolled | Galvanized Steel | 00000000 | 00000 |
| 9 | 8 15/16" | Rolled | Galvanized Steel | 00000000 | 00000 |
| 10 | 9 15/16" | Rolled | Galvanized Steel | 00000000 | 000000 |
| 12 | 11 7/8" | Rolled | Galvanized Steel | 00000000 | 000000 |
| 14 | 14" | Rolled | Galvanized Steel | 00000000 | 000000 |
| 16 | 15 15/16" | Rolled | Galvanized Steel | 00000000 | 000000 |
Standard Duct and Fittings
No need for clamps or connectors—duct and fittings press-fit together. Male ends are crimped or tapered, making them slightly smaller than a female end for simple assembly.
Aluminum is more lightweight than steel and stainless steel and has good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Open duct can be cut with snips prior to installation. The seam snaps together without tools.
Adjustable-angle elbow connectors can be used at an angle or straight.
Aluminum | ||||||
|---|---|---|---|---|---|---|
| Trade Size | Female ID | Male OD | Gauge | End Construction | Each | |
| 3 | 3" | 2 7/8" | 26 | Crimped | 0000000 | 00000 |
| 4 | 4" | 3 7/8" | 26 | Crimped | 0000000 | 0000 |
| 5 | 5" | 4 7/8" | 26 | Crimped | 0000000 | 00000 |
| 6 | 6" | 5 7/8" | 26 | Crimped | 0000000 | 00000 |
| 7 | 7" | 6 7/8" | 26 | Crimped | 0000000 | 00000 |
| 8 | 8" | 7 7/8" | 26 | Crimped | 0000000 | 00000 |
| 9 | 9" | 8 7/8" | 26 | Crimped | 00000000 | 00000 |
| 10 | 10" | 9 7/8" | 26 | Crimped | 0000000 | 00000 |
| 12 | 12" | 11 7/8" | 26 | Crimped | 0000000 | 00000 |
Reducers connect duct with different diameters.
Trade Size | Aluminum | ||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | Female ID (A) | Male OD (B) | End Construction | Gauge | Each | |
| 4 | 3 | 4" | 2 7/8" | Crimped | 26 | 0000000 | 000000 |
| 5 | 4 | 5" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 6 | 4 | 6" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 7 | 4 | 7" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 7 | 5 | 7" | 4 7/8" | Crimped | 24 | 0000000 | 00000 |
| 8 | 6 | 8" | 5 7/8" | Crimped | 24 | 0000000 | 00000 |
| 10 | 6 | 10" | 5 7/8" | Crimped | 24 | 0000000 | 00000 |
| 10 | 8 | 10" | 7 7/8" | Crimped | 24 | 0000000 | 00000 |
| 12 | 8 | 12" | 7 7/8" | Crimped | 24 | 0000000 | 00000 |
| 12 | 10 | 12" | 9 7/8" | Crimped | 24 | 0000000 | 00000 |
Reducers connect duct with different diameters.
Trade Size | Aluminum | ||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | Male OD (A) | Female ID (B) | Gauge | End Construction | Each | |
| 4 | 3 | 3 7/8" | 3" | 26 | Crimped | 0000000 | 000000 |
| 5 | 4 | 4 7/8" | 4" | 26 | Crimped | 0000000 | 00000 |
| 6 | 4 | 5 7/8" | 4" | 26 | Crimped | 0000000 | 00000 |
| 7 | 5 | 6 7/8" | 5" | 26 | Crimped | 0000000 | 00000 |
| 8 | 6 | 7 7/8" | 6" | 26 | Crimped | 0000000 | 00000 |
| 10 | 8 | 9 7/8" | 8" | 26 | Crimped | 0000000 | 00000 |
| 12 | 8 | 11 7/8" | 8" | 26 | Crimped | 0000000 | 00000 |
| 12 | 10 | 11 7/8" | 10" | 26 | Crimped | 0000000 | 00000 |
Duct Flanges
Bolt flanges to equipment to start a run of duct. They can also create secure connections between two duct ends by mounting a flange to each end and then joining the flanges.
Aluminum flanges have good corrosion resistance in wet environments, and weigh less than steel and stainless steel flanges.
For technical drawings and 3-D models, click on a part number.
Flange | Mounting | Alumiunum | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Trade Size | Female ID | Overall Dp. | Ht. | Thick. | Fasteners Included | No. of Holes | Hole Dia. | Connection Type | Each | |
| 3 | 3 1/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 000000 |
| 3.5 | 3 9/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 4 | 4 1/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 4.5 | 4 9/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 5 | 5 1/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 5.5 | 5 9/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 6 | 6 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 7 | 7 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 8 | 8 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 9 | 9 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 10 | 10 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 11 | 11 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 12 | 12 1/8" | 1 1/2" | 1 1/2" | 1/8" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 13 | 13 1/8" | 1 1/2" | 1 1/2" | 1/8" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 14 | 14 1/8" | 1 1/2" | 1 1/2" | 1/8" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 16 | 16 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 18 | 18 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 20 | 20 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 12 | 7/16" | Press Fit | 0000000 | 00000 |
| 24 | 24 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 12 | 7/16" | Press Fit | 0000000 | 00000 |
| 26 | 26 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 000000 |